An acid-etch study of the Kapoeta achondrite: Implications for the argon-36/argon-38 ratio in the solar wind

Meteoritics and Planetary Science

Volumn 33, Issue 1, 1998, Pages 109-113

  Becker, R H ^a   Schlutter, D J ^a   Rider, P E ^b   Pepin, R O ^a  

^a University of Minnesota ^*  (United States)

^b Grand View College   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACHONDRITE; ARGON; ATMOSPHERIC EVOLUTION; SOLAR WIND;

EID: 0031981292     PISSN: 10869379     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1945-5100.1998.tb01612.x     Document Type: Article

References (19)

1. ANDERS E. AND GREVESSE N. (1989) Abundances of the elements: Meteoritic and solar. Geochim. Cosmochim. Acta 53, 197-214.
2. BECKER R. H. AND PEPIN R. O. (1989) Long term changes in solar wind elemental and isotopic ratios: A comparison of two lunar ilmenites of different antiquities. Geochim. Cosmochim. Acta 53, 1135-1146.
3. BECKER R. H. AND PEPIN R. O. (1991) Composition of solar wind noble gases released by surface oxidation of a metal separate from the Weston meteorite. Earth Planet. Sci. Lett. 103, 55-68.
4. BENKERT J-P., BAUR H., SIGNER P. AND WIELER R. (1993) He, Ne, and Ar from the solar wind and solar energetic particles in lunar ilmenites and pyroxenes. J. Geophys. Res (Planets) 98, 13 147-13 162.
5. BLACK D. C. (1970) Trapped helium, neon and argon in meteorites: Boundary conditions on the formation and evolution of the solar system. Ph.D. Thesis, University of Minnesota. 96 pp.
6. FRICK U., BECKER R. H. AND PEPIN R. O. (1988) Solar wind record in the lunar regolith: Nitrogen and noble gases. Proc. Lunar Planet. Sci. Conf. 18th, 87-120.
7. HINTENBERGER H., WEBER H. W. AND SCHULTZ L. (1974) Solar, spallogenic, and radiogenic rare gases in Apollo 17 soils and breccias. Proc. Lunar Sci. Conf. 5th, 2005-2022.
8. HOHENBERG C. M., MARTI K., PODOSEK F. A., REEDY R. C. AND SHIRCK J. R. (1978) Comparisons between observed and predicted cosmogenic noble gases in lunar samples. Proc. Lunar Planet. Sci. Conf. 9th, 2311-2344.
9. HÜBNER W., KIRSTEN T. AND KIKO J. (1975) Rare gases in Apollo 17 soils with emphasis on analysis of size and mineral fractions of soil 74241. Proc. Lunar Sci. Conf. 6th, 2009-2026.
10. MAZOR E. AND. HEYMANN D. (1970) Noble gases in carbonaceous chondrites. Geochim. Cosmochim. Acta 34, 781-824.
11. NICHOLS R. H., JR., HOHENBERG C. M. AND OLINGER C. T. (1994) Implanted solar helium, neon, and argon in individual lunar ilmenite grains: Surface effects and a temporal variation in the solar wind composition. Geochim. Cosmochim. Acta 58, 1031-1042.
12. PEDRONI A. (1989) Die korpuskulare Bestrahlung der Oberflächen von Asteroiden: Eine Studie der Edelgase in den Meteoriten Kapoeta und Fayetteville. Ph.D Thesis No. 8880, ETH Zürich. 224 pp.
13. PEPIN R. O. (1980) Rare gases in the past and present solar wind. In The Ancient Sun: Fossil Record in the Earth, Moon and Meteorites, (eds. R. O. Pepin, J. A. Eddy and R. B. Merrill), pp. 411-421. Pergamon Press, New York, New York.
14. PEPIN R. O. (1991) On the origins and early evolution of terrestrial planet atmospheres and meteoritic volatiles. Icarus 92, 2-79.
15. PEPIN R. O. (1994) Evolution of the martian atmosphere. Icarus 111, 289-304.
16. RIDER P. E., PEPIN R. O. AND BECKER R. H. (1995) Noble gases and nitrogen released from lunar soils by acid etching. Geochim. Cosmochim. Acta 59, 4983-4996.
17. WIELER R. AND BAUR H. (1995) Fractionation of Xe, Kr, and Ar in the solar wind and solar corpuscular radiation deduced by closed system etching of lunar soils. Astrophys. J. 453, 987-997.
18. WIELER R., BAUR H. AND SIGNER P. (1986) Noble gases from solar energetic particles revealed by closed system stepwise etching of lunar soil minerals. Geochim. Cosmochim. Acta 50, 1997-2017.
19. WIELER R., KEHM K., MESHIK A. P. AND HOHENBERG C. M. (1996) Secular changes in the xenon and krypton abundances in the solar wind recorded in single lunar grains. Nature, 384, 46-49.